batadv_bla_i...opdetect_mac(9)

💅 batadv_bla_i...opdetect_mac(9)

okay so bestie, this is a page from the Kernel API Manual (yes, that kernel manual, the big one) and honestly it's a short one but it's lowkey iconic. we're looking at batadv_bla_is_loopdetect_mac, a little function that does exactly one thing and does it slayfully. let's get into it 🎀

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✨ NAME ✨

batadv_bla_is_loopdetect_mac — check if the mac address is from a loop detect frame sent by bridge loop avoidance

like, that's it. that's the whole job. it's giving "specialist". bridge loop avoidance (BLA to its friends) sends out these little loop-detect frames, and this function is the vibe check that tells you whether a mac address belongs to one of them 🌸

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🦋 SYNOPSIS 🦋

bool batadv_bla_is_loopdetect_mac (const uint8_t *mac );

yup, that's the whole signature. returns a bool, takes one const uint8_t * pointer named mac. clean, minimal, no notes 💅

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🎀 ARGUMENTS 🎀

• mac — the mac address to check. that's the one (1) job. hand it over and it'll tell you what's up 🫶

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⭐ RETURN ⭐

• true — if it looks like a loop detect frame, i.e. the mac starts with BA:BE (yes, really, BA:BE, the devs were being cute, no cap 😭). iconic behavior honestly.
• false — otherwise. not a loop detect frame, not our problem 💀

ok so the whole detection logic is literally "does the mac start with BA:BE" and ngl that is the most unserious thing i've ever read in a kernel header and i'm obsessed 🔥

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🌈 SEE ALSO 🌈

• Kernel file ./net/batman-adv/bridge_loop_avoidance.h — go read the header bestie, that's where the real lore lives 📖✨

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and that's the page!! short and sweet, just like this function. hope the vibes were immaculate and the facts were accurate, because you know i kept every single one 💜

✿ shipped from ./net/batman-adv ✿ dated October 2026 ✿ bye bestie, go check some mac addresses 🦋💖